Abstract
THE incidence of hiatus hernia, as reported by many authors, varies from 2.3 to 50 per cent. Boyd et al.1 reported a figure of 2.3 per cent in 1500 barium examinations, and Krothe2 one of 8 per cent. Hafter3 noted a frequency of 12.5 per cent in a large series of 2402 barium-meal examinations. In 1960 Stein and Finkelstein4 reported finding hernias in 50 per cent of 100 consecutive barium-meal examinations. These wide variations may be attributable in part to the technics used and in part to the criteria on which this diagnosis is based.Diverticulosis of the colon is . . .